Longines Calibres L 890, L 891, L 892, L 893 Technical Manual
Technical documentation for Longines automatic watch movements L 890.1, L 890.2, L 891.1, L 891.2, L 892.1, L 892.2, L 893.1, L 893.2. 12-line round movements with 28,800 alternations per hour. Includes general characteristics, technical specifications, motor unit description, transmission system, escapement details, regulating organ, winding and date-setting mechanisms, and automatic winding system. Features caliber comparison plates showing movement variants with and without date complications.
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Document Details
- Format
- Pages
- 3
- Size
- 6.0 MB
- Category
- Horlogerie